Episode 71: Erlang and OTP with Ingela Anderton Andin and Kiko Fernandez-Reyes
Feb 27, 2024
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The podcast delves into the background and evolution of Erlang OTP team members, tracing capabilities in Erlang, dynamics of passing atoms dynamically, INET application development challenges, documentation attributes, database design challenges, and upcoming features in database systems.
Introduction of process labels in Erlang for better process tracking and identification.
Embedding documentation attributes in Erlang files to improve user-friendly documentation with markdown.
Deep dives
Process Labels for Improved Process Tracking
Process labels are being introduced in Erlang to allow for the creation of non-unique labels for processes, which can enhance the visibility of process trees in tools like Observer and Crash Report. These labels can provide information on the purpose or function of each process, even for worker processes without registered names, enabling better process tracking and identification.
Documentation Attribute Embedding and Improvements
Documentation attributes are being embedded in Erlang files in a style similar to Elixir, enhancing the co-location of code and documentation. The aim is to improve the look and feel of Erlang documentation, making it more user-friendly and accessible, with a shift towards using markdown for documentation. This change is expected to make maintaining good documentation for Erlang projects less burdensome and more efficient.
Type System Enhancements and Experimentation
Work on applying type systems like Dializer and Equalizer to Erlang is in progress, potentially incorporating theoretical types into Erlang. Discussions are underway with developers working on these type systems to explore their integration into Erlang, offering more robust and flexible type checking capabilities. The goal is to enhance Erlang's type system based on experimentation and insights from other languages like Elixir.
Hyper Amnesia Transaction Model Advancements
Hyper Amnesia, a transaction handling model using CRDTs to address split brain and inconsistency issues, is under discussion for potential integration into Erlang and OTP. This innovative approach aims to enhance the resilience and efficiency of transaction handling in distributed Erlang systems, potentially offering faster and more reliable database operations. While no conclusive decision has been reached yet, the potential of Hyper Amnesia showcases promising advancements in database design within the Erlang ecosystem.
This is the second time that we've managed to reach deep into Ericsson and pull out some of the developers that work on the runtime and the language and the standard libraries that we all rely on. We have two members from the Erlang OTP team with us today!
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